Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
wang yong » wang hyoung, wang yan, wang shiyong
a region » a regional
hong ghi » zhong zhi, hong g
hong hai » shang hai, zhong tai, dang hai
lang li » liang li, ling li, tang li
a rein » a reine, a reit

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (wang yong)) yan ((a rein) OR (a region)) lang li ((hong ghi) OR (hong hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (wang yong)) yan ((a rein) OR (a region)) lang li ((hong ghi) or (hong hai)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (wang yong)) yan ((a rein) OR (a region)) lang li ((hong ghi) or (hong hai)) ;*.